CN203818868U - Novel dust collection type blackboard brush - Google Patents

Abstract

The utility model provides a novel dust collection type blackboard brush and belongs to the field of environmental protection applications. With the adoption of the dust collection type blackboard brush, the problem of dust pollution in classrooms is solved, so that the body health of teachers and students is guaranteed, and the class quality is indirectly improved. The whole blackboard brush has the advantages of low cost, good dust removal effect and lightness, convenience and flexibility in use and is applicable to classroom teaching environments of colleges and universities, middle schools, primary schools and the like.

Description

A new type of dust-absorbing blackboard brush

technical field

The utility model relates to a novel blackboard brush, which is a blackboard brush with a novel dust-absorbing structure. the

Background technique

Chalk dust is a source of air pollution in classrooms, which is a serious hazard to human health, and even has a great impact on classroom teaching effects. Therefore for solving the dust pollution problem in the classroom, be badly in need of a kind of blackboard brush with dust-absorbing effect. the

Contents of the invention

The purpose of the utility model is to absorb dust and eliminate dust pollution in classrooms. the

The technical scheme of the utility model:

The blackboard eraser consists of a transmission box (1), a main box (2), a dust collection box (3), a brush head plate (4), and a dust suction structure (5), consisting of five parts. The transmission box (1) is composed of the transmission box shell, the ratchet group and the fixing frame; there is a fixing frame on the transmission box casing to fix the ratchet group; the ratchet group is composed of two ratchet wheels that turn in opposite directions; A transmission wheel, the transmission wheel is covered with a special-shaped anti-skid belt, and when the transmission wheel rotates, the power is transmitted to the drive shaft through gear transmission. The main box body (2) is roughly a rectangular box body in shape, and a deflector plate with a special deflection angle is arranged in the box body. The outer shape of the dust box (3) is a semi-cylindrical box body, and the box body is provided with a hole of a certain shape on one side facing the palm, and a filter screen is housed on the hole. The brush head of the brush head plate (4) is composed of rectangular strip brush strips; there is a rectangular dust suction hole between two adjacent brush strips, and the two sides of the dust suction hole form a certain angle with the axial direction of the dust suction hole. The dust-absorbing structure (5) is composed of a fan and a dust-absorbing chamber, the fan has a certain deflection angle, and the dust-absorbing chamber is a cylindrical chamber. The blackboard eraser wipes off chalk dust through the movement of the brush head plate (4). At the same time, the transmission box (1) is in contact with the blackboard and is consistent with the movement of the brush head plate (4), and the dust suction structure (5) is driven by mechanical transmission. ), so that the dust suction structure (5) sucks air into the main box (2) to form a negative pressure, thereby absorbing dust, and enters the dust box (3) through the main box (2).

Beneficial effects: the blackboard eraser has good dust-absorbing effect, is light and flexible to use, simple in structure, easy to manufacture and low in cost. the

Description of drawings

Figure 1 is an isometric view of the dust-suction blackboard brush. the

Fig. 2 and Fig. 3 are internal structural diagrams of the dust-suction type blackboard brush. the

Fig. 4 is a structural diagram of the transmission box, Fig. 5 is a diagram of the ratchet mechanism, and Fig. 6 is a structural diagram of the transmission gear. the

Detailed ways

It can be seen from Figure 1 that the main structure of the box body is assembled to form a compact structure through the connection of the main box body to assemble the brush head plate, dust suction structure, transmission box body, and dust collection box. While the brush head plate efficiently brushes off the chalk writing, the transmission box transmits the power of manual brushing on the blackboard eraser to the dust suction structure, so that the dust suction structure absorbs and collects dust, thereby achieving the effect of eliminating dust pollution in the classroom. the

Claims (6)

1. A new dust-absorbing blackboard brush, characterized in that it has a transmission box (1), a main box (2), a dust collection box (3), a brush head plate (4), and a dust-absorbing structure (5) There are five parts in total. 2. A new type of dust-absorbing blackboard brush according to claim 1, characterized in that the transmission box (1) consists of: a transmission box housing, a ratchet set and a fixing frame, and a fixing frame on the transmission box housing will The ratchet group is fixed; the ratchet group is composed of two ratchet wheels that turn in opposite directions; there is a transmission wheel on the side of the brush facing the blackboard, and a special-shaped anti-slip belt is set on the transmission wheel. When the transmission wheel rotates, the power is transmitted to the drive through gear transmission axis. 3. A new type of dust-absorbing blackboard brush according to claim 1, characterized in that the main box (2) is roughly in the shape of a rectangular box, and a deflector with a special deflection angle is arranged in the box. 4. A new type of dust-absorbing blackboard brush according to claim 1, characterized in that the shape of the dust collection box (3) is a half-cylindrical box body, and the side of the box body facing the palm is provided with a hole of a certain shape, and the hole is equipped with strainer. 5. A new dust-absorbing blackboard brush according to claim 1, characterized in that the brush head of the brush head plate (4) is composed of rectangular strip-shaped brush strips; there is a rectangular dust-absorbing brush between two adjacent brush strips. The two sides of the suction hole and the axial direction of the suction hole form a certain angle. 6. A new type of dust-absorbing blackboard brush according to claim 1, characterized in that the dust-absorbing structure (5) is composed of a fan and a dust-absorbing cavity, and the fan is a dust-absorbing fan with a certain deflection angle; The cavity is a cylindrical cavity.